Issue 9, 2023

The self-assembly of a pair of low-symmetry tetracarboxylic acid molecules and their co-assembly with bridging molecules at the liquid–solid interface

Abstract

The supramolecular self-assembly behavior of a pair of low-symmetry tetracarboxylic acid molecules (H4OBDB and H4ADDI) and their co-assembly behavior with TMA as a bridging molecule were studied at the liquid–solid interface. Scanning tunneling microscope (STM) observations revealed that H4OBDB and H4ADDI molecules both tend to form O-shaped dimers but end up forming different types of self-assembly structures. We also investigated the construction of two-component co-assembly structures by mixing H4OBDB or H4ADDI molecules with bridging molecules such as TMA. The two formed co-assembly structures are similar. Based on the analysis of the STM results and the density functional theory (DFT) calculations, the formation mechanism of the assembled structures was revealed.

Graphical abstract: The self-assembly of a pair of low-symmetry tetracarboxylic acid molecules and their co-assembly with bridging molecules at the liquid–solid interface

Supplementary files

Article information

Article type
Paper
Submitted
02 dec 2022
Accepted
30 jan 2023
First published
30 jan 2023

Nanoscale, 2023,15, 4353-4360

The self-assembly of a pair of low-symmetry tetracarboxylic acid molecules and their co-assembly with bridging molecules at the liquid–solid interface

S. Zhang, J. Li, L. Gan, L. Ma, W. Ma, M. Zhang, F. Cheng, K. Deng and Q. Zeng, Nanoscale, 2023, 15, 4353 DOI: 10.1039/D2NR06740D

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